LZW (Lempel-Ziv-Welch)
A lossless form of compression used to create TIFF files.
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LZW (Lempel-Ziv-Welch)
Techniques Glossary LZW (Lempel-Ziv-Welch)
A lossless form of compression used to create TIFF files.
Lempel-Ziv-Welch. See LZW.
Lighten. An image editing function that is the equivalent to the photographic darkroom technique of dodging. Tones in a given area of an image are gradually changed to lighter values. See also dodging.
(Lempel-Ziv-Welch) A compression scheme used to reduce the size of image files.
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For comparison, a 400 Watt light bulb is 10-24 solar luminosities. LZW - Lempel-Ziv-Welch A compression scheme used to reduce the size of image files (used e.g. in TIFF, PDF, GIF, and PostScript language file formats).
GIFs store bitmaps in patterns of indexed 8-bit color (256 colors or less) using a special algorithm called Lempel-Ziv-Welch (LZW). Using this algorithm, gifs compress the raw bitmaps into smaller file sizes.
Typically an image from a 3-megapixel camera will take up more than 9Mb of space on your storage card.
There are some variations in compressing TIFF files so you may have problems opening one from another source. Some use the LWZ (Lempel-Ziv-Welch) ...
 See also: TIFF, Lossless, Compression, Photograph, LZW
  
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